Sinopean /saɪnəˈpiːən/adjective 3noun 1forms 1 adjective3 •Of or relating to the city of Sinope (now Sinop) on the Black Sea. •Of or relating to Sinope in Greek mythology. •Of or relating to the irregular Jovian moon named for the mythological Sinope. noun1 •An inhabitant or citizen of Sinope.A colony of Sinopeans. formsSinopeans